QUAD FRONTFIRING 8″ SUB BOX for 2007-CURRENT CHEVY SILVERADO/GMC SIERRA CREW CAB
Quad 4-Hole 8" Ported Subwoofer Enclosure Box for 2007-Current GMC/Chevy Crew Cab – Bedliner Finish. Firing Direction: Under-seat Front-Fire design maximizes acoustic transfer directly into the cabin.